A visual and functional inspection was performed on the returned device.The reported stent dislodgement and leak/splash could not be confirmed.Lot history record (lhr) and corrective and preventive actions (capa) reviews were performed and revealed no indication of a product quality issue.Additionally, a review of the complaint history identified no other incidents.A conclusive cause for the reported difficulties could not be determined.Stent dislodgement prior to use may be attributed to several factors including, but not limited to, improper or inadequate crimping at the time of manufacture, incorrect sheath sizing, positive pressure during preparation, forced sheath removal, handling of the stent during preparation, and interaction with accessory devices.Factors that may contribute to a leak include, but are not limited to, inflation technique, contrast concentration, loose connection with the indeflator, contamination in the inflation lumen or damage to the balloon, guide wire and/or inflation lumen.Based on the information received and analysis of the returned device, a conclusive cause for the reported stent dislodgement and leak/splash cannot be determined.In addition, it is possible the observed material deformation (stent damage) may have occurred due to inadvertent mishandling during sheath/stylet removal or unpackaging of the device¿ however, this cannot be confirmed.There is no indication of a product quality issue with respect to manufacture, design, or labeling; therefore, no product-related corrective action will be implemented in this case.
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